1) Breech presentation refers to when the fetus is positioned with the buttocks or feet closest to the cervix rather than the head. It occurs in 3-4% of pregnancies at term.
2) Risk factors for breech presentation include multiparity, uterine abnormalities, fetal factors like prematurity, and placental or amniotic fluid issues. There are different types including complete, frank, and footling breech.
3) Breech presentation is diagnosed through clinical examination including abdominal palpation and ultrasound. Management options include external cephalic version, planned c-section, or attempted vaginal breech delivery depending on the situation.